Where did you see the video at? I want to see!
It could be that, the video you saw was from before Konung was released, during it's development. Sometimes they change the videos in a game too, because of translation, they leave out some parts of an in-game video. Might be a Russian mod too, I don't think there were any English mods available?
I don't know for sure, just an idea
. I've only ever seen 3 Konung games.